Cast your mind back: its 1998
Thopter Foundry Sword of the Meek is one of the better combo decks in the cube but it does demand a fair number of niche support cards such as Time Sieve, Second Sunrise, Ichor Wellspring and the like making it something I generally leave out of the A cube
Thallid Soothsayer + Thallid Omnivore Thallid Soothsayer and Thallid Omnivore are both fair sacrifice outlets for your Saprolings, but they fall short on flavor
Here are the rest of my picks: Generally speaking, what draws me in is contrast and emotion, and a strong focal point
You dont even necessarily need to have self-mill cards like Town Greeter, Shinra Reinforcements or Vanille, Cheerful lCie (though those should absolutely be prioritized)
However, if I have a card like Platinum Angel in play that says: I cant lose and they cant win, then none of these conditions can happen